Bolt and nut retaining device



July 7,1925.

J. COYNE v BOLT AND NUT RETAINING DEVICE Jfor n Filed Jan. 2, 1924 Patented July 7, 1925.

Jane's: corms, or rmssesem mmvsm.

BOLT LAND *N T "RnriirNinG Env ron.

To all whom it my concern:

"Be it known that 1?, *JAivnis GOYNIE, *oitizen of the United States, residing at Pittsburgh, in the countyof -Allegheny and 'State of Pennsylvania, hav e' v invent-ed certain "new and useful 'LnprO V'enientS in "Boltand' .Nut RetainingDevices, of which the following is a specification. f

This invention relates tobolt retainers and unore particularly to *bolt' ir'nd nut retaining devices which simultaneouslypre ventthe' rotation and "fal'ling'out of the retained element.

@110 of" the 'principal'obj'ects' ol1thisinventio'niis toprovid'e atlevioe whiclris 'positive in action, si'n1ple',"and which can b'e' inanu factured very Cheaply. Another object is to provide a retaining device which can be applied to old structures as well as new ones and which requires' for its application the use of asinallha'inineronly. A further object is to provide a retainer which canbe constructed in such a manner as toloe applied to 01" removed" f'i'o1n,"bolted connections of certain types without requiring the remoi'al otthe bolttl'ierefrom. Additional features and advantages of this" invention it ill ppear fro in the 'l ol'loii i'ng description viewed in connection with the accompanying ilrawings forming part otthi s application, and in wi hiclni-arious modificationsof the same principle are illustrated.

*In the drawings: v

Fig. 1 is asideu iew ofa retain'ing and lockingdevice showing atype requiring'the removal of the boltfor its application.

v Fig. 2'is a top plan view of Fig.1.

is a lirontelevation of Fig-1.

Fig. 4 is a sideview: showin'ga' modified construction which can be applied orj reuored without reqiiiringtheremoval of the bolt. 1 Y 7 1 Fig. 5 is atopWieWot Fig.1 e'lfand Fig; 6 is a frontelevationthereof.

Fig. 7 is another*modification"showing the application ofa i'etai1'1er='t'() narrow constructions, where one or both ni'einbers supporting the bolt aresubs'tantially of the same width asthe bolt-nut.

Fig. 8 is a top View of Fig. 7, while Fig. 9 represents a front elevation of Fig. r.

Fig. 10 is a side view showing a simpli lied modification of the retainer shown. in Fig. 7,

Fig 11 is aztop plan VlGWDf Fig. :10 and 5 Fig-=12 is a ifront: elevation thereof.

ill igs; 13 and D4: are \r'espeetiv-ely side and front-"elevations *showing [a modification of my inventioncused as a locking dei ice'rt'o prevent the unscrewing of bolt-nuts.

' ig. I1 5 visual con'rb'ination bolt yandsnut. looking devicerbuilt along'cthe lin'es ofnry in-Vention; i i

Figs: *16- and 17 i'are respectively front-and :FigfllS i'sia developed view oflthe retainshape of "anS; to be iapplied :in'o're :particu larly to forkedhingediconirections tound'so frequently in ear brake connections.

- Although the retaining "means forming the subject of this application may be readily used'onifo'rkerili hinged: connections, it will" be e'asily' understood that; owing to their sinrplcr shapei theyunay be put in use l'II- EL" great variety of installations 'where *the S shaped retirinerswould not answer as well. Moreover, by'us-ingithe i'former retainers; one for-[the bolt-head and one for thernut, the retenti0n*"of ieithei -part' is vpractically assuredf Reference b'eing'had to Figs. '1, 2, 8 and 1-8, .rnyi retainerrcoinprises a blank s'tripiol soft -ancl'pli'abl'e nietal '1 ofsuitable size and thickness to be: easily folded by hand or with the 'aissistanoe of a small hammer over the bolt'fhead orinnttobe iretained. T Adjacent the *itorwardl end of said 'st'ripare punched out the oblong apertures which-are to be engaged by :t-he tipre'nds of thei-fingers 5 pro ided Ion; the 1 rear rend: of theif blank strip, The'i'nner'sides oftheseifingers are spaced a'part'tovernbraceathe sidesiof the bolt head or"- nut in richits-to be retained' rand mart of the metali'between -that sp'aeeis Zfo'rmed' into a tongue ('3 -whioh is to be folded over the "bolt head, thus preventing the latter from Suitably positioned in the blank strip is the aperture 7 through which the bolt-stud is passed prior to folding the strip.. This construction would, of course, require the removal of the bolt-stud in order falling out.

to apply the retainer. The latter can, however, be modified in the manner shown in Figs. 1 to 6 to enable its application without extracting the bolt. This modification consists in providing in the body of the strip an open slot 8 (shown in dot and dash lines in Fig. 18) instead of the closed aperture 7.

This retainer is applied on the bolt to be retained while in its flattened, or blank state, and is then folded by hand or by means of a small hammer over the sides of the structural member 9, the bolt head 10 and the tips of the fingers are inserted in the holes 3 after which the former are bent either up 01' down to hold them fixedly in place. Owing to the thinness of the retainer, it is usually found preferable to form in the fingers the arcuate portions 11, as an additional guaranty against the rotation of the bolt. The tongue6 isthen folded over the head, thereby locking the bolt against rotation 'as well as preventing'its accidental escape. I

In Figs. 7 to '12 inclusive are'illustrated two types of retainers intended especially for small constructions,'as already statech It will be noted therein that the tongue member 6, in Figs. 1 to 6, has been eliminated, the body proper of the retainer having been folded over the bolt or nut. The retainer with the two fingers 12 may be used preferably for securing bolt-nuts, as the'portion of the bolt-stud 13, usually extending above the nut, is taken care of by the space 14 between the fingers. hen the retainer is to be used to hold the bolt proper, the construction with the single finger 15 may be used. This construction enables the retainer to be applied more rapidly and permits a 'more liberal dimensioning of the single central finger. The method of applying this modified construction is substantially the same as the one already decribed, and need therefore not be repeated here.

Retainers of the type shown in Figs. 13 and l l are slight modifications of those shown in Figs. 1 to 6; the modification consisting in the elimination of the tongue 6, to make the retainers more suitable for use in connection with bolt-nuts, having protruding bolt-studs.

In Figs. 15 to 17 is shown a combined bolt and nutlocking deviceincorporating in its upper part the nut locking device shown in Figs. 13 and 14, whereas the lower part is slightly modified to provide means for locking the bolt proper against rotation. As shown, a depending tongue 16'is stamped out of place in case of rupture of the bolt-stud oraccidental loss of the bolt-nut. Many changes in the precise construction and-form of my retainers may bemade without exceeding the scope ofthe claims and I reserve myself the liberty of making all.

such changes as may be thought desirable.

I claim:

1. In combination with a structural member, a bolt inserted therethrough; a bolt and nut'locking means to simultaneously pre vent the rotation and accidental disengagement offsaid bolt and nut; said locking means comprising a unitary'strip of pliable material adapted to surround said structural member and having an aperture to be engaged by said bolt; one end of'said strip having a pair of pliable parallel fingers spaced to engage opposite sides of said nut and having arcuate portions formed therein adapted to prevent the rotation of said nut; the other end of said striphaving provided therein apertures to be engaged by said fingers when in folded position.

2. In combination with a structural member, a bolt inserted therethrough; a bolt and nut locking means to simultaneously prevent therotation and accidental disengagement of said bolt. and nut; said locking means comprising a unitary strip of pliable material adapted to surround said structural memberand having an aperture to be en gaged by said bolt; one end of said strip having a pair of pliable parallel fingers spaced to engage opposite sides of said nut and having arcuate portions formed therein adapted to prevent the rotation of said nut; the other end of said'strip having, provided therein apertures to be engaged by said fingers when in'foldedposition, and a pliable tongue formed integrally with said strip and positioned intermediate said fingers to prevent the accidental remova and rotation of said nut.

In testimony whereof I affix my signature.

JAMES (lOYNl-C. 

